Some metal-ion complexes with ligands formed by reactions of amines with aliphatic carbonyl compounds. X. Compounds of some tridentate ligands formed by reaction of copper(II) 2-Aminoethanol and 3-Aminopropan-1-ol complexes with 4-Amino-(and 4-Hydroxy)-4-methylpentan-2-one

1980 ◽  
Vol 33 (8) ◽  
pp. 1695 ◽  
Author(s):  
KR Morgan ◽  
NF Curtis
Keyword(s):  
Magnetic Susceptibility ◽  
Carbonyl Compounds ◽  
Metal Ion ◽  
Spin Coupling ◽  
Tridentate Ligands ◽  
Metal Ion Complexes ◽  
Magnetic Susceptibilities ◽  
Condensation Products ◽  
Antiferromagnetic Spin

Compounds of copper(II) perchlorate with 2-aminoethanol (etol) and 3- aminopropan-1-ol (prol) react with 4-amino-4-methylpropan-2-one (amp), and with 4-hydroxy-4-methylpropan-2-one (hmp), to form compounds of stoichiometry [Cu(L)] ClO4, where (L) is a tridentate amine imine olato ligand from amp, or a hydroxy imine olato ligand from hmp. The etol condensation products have 'normal' magnetic susceptibilities, while the prol condensation products show antiferromagnetic spin-coupling. The prol/amp product is diamagnetic at 300 K (-J > 700 cm-1) and the prol/hmp product has a J of -186 cm-1, based on magnetic susceptibility measurements over 100-300 K. Preparations of some related nitrate, thiocyanate and tetrachlorozincate compounds are reported. Possible structures for the compounds are discussed.

Some metal-ion complexes with ligands formed by reactions of amines with aliphatic carbonyl compounds. IX. Nickel(II) compounds of some b-imino amines, a β-oximato amine and a β-hydrazino amine

1980 ◽  
Vol 33 (6) ◽  
pp. 1231 ◽  
Author(s):  
KR Morgan ◽  
NF Curtis
Keyword(s):  
Magnetic Susceptibility ◽  
Ground State ◽  
Carbonyl Compounds ◽  
Metal Ion ◽  
Spin Coupling ◽  
Singlet Ground State ◽  
Coupling Constant ◽  
Spin Coupling Constant ◽  
Complex Products ◽  
Amine Ligands

Singlet ground state compounds of nickel(II) with tetradentate β-imino amine ligands are formed by reaction of complexes of ethane-1,2- diamine, propane-1,2-diamine, 3-azapentane-1,5-diamine, 4-azaheptane- 1,7-diamine and (2-aminoethyl)piperazine with 4-amino-4-methylpentan-2- one, amp. With 3,6-diazaoctane-1,8-diamine, a compound with a pentadentate β-imino ligand is formed, water completing octahedral coordination, and with 2-aminoethanol a bis compound of a tridentate β-imino amine alcohol ligand is formed. More complex products are formed by the hydrazone and oxime of amp. The oxime compound shows appreciable antiferromagnetism, with the spin-coupling constant, J, about -70 cm-1, determined from magnetic susceptibility measurements over 100-300 K.

Some Metal-Ion Complexes with Ligands Formed by Reactions of Amines with Aliphatic Carbonyl Compounds. VII. Copper(II) Compounds of Some β-Imino Amines, Formed by Reaction of Copper(II) Chelate Amine Complexes with 4-Amino-4-methylpentan-2-one

1979 ◽  
Vol 32 (11) ◽  
pp. 2371 ◽  
Author(s):  
KR Morgan ◽  
JWL Martin ◽  
NF Curtis
Keyword(s):  
Carbonyl Compounds ◽  
Metal Ion ◽  
Amine Group ◽  
Metal Ion Complexes ◽  
Amine Complexes ◽  
Imine Group ◽  
Tetradentate Ligands ◽  
Amine Groups ◽  
Aliphatic Diamines

Compounds of copper(II) with chelated β-imino amines are formed by reaction between 4-amino-4-methylpentan-Zone (amp) and copper(II) complexes of ethane-1,2-diamine, propane-1,2- and -1,3-diamine, meso-l,2-diphenylethane-l,2-diamine, 2-(2-aminoethyl)pyridine, 3-azapentane-1,5-diamine, 3-azahexane-1,6-diamine, 4-azaheptane-1,7-diamine, 3,6-diazaoctane-1,8-diamine, 4,8-diazaundecane-1,11-diamine, 3-(2-aminoethyl)-3-azapentane-1,5-diamine and 4,6,6-trimethyl-3,7-diazanon-3-ene-1,9-diamine. Compounds with one β-imino amine group were formed for all the amines, except 1,2-diphenylethane-1,2-diamine and propane-1,3-diamine, and compounds with tetradentate ligands with two β-imino amine groups were formed with the aliphatic diamines. The imine group of the compounds is relatively resistant to hydrolysis.

scholarly journals Synthesis, Characterization and Magnetic Susceptibility of Novel Transition Metal Ion Complexes with (E)-2-((7H-Purin-6-ylimino)methyl)phenol and Its Antibacterial Efficiency

2021 ◽  
Vol 7 (4) ◽  
pp. 748-750
Author(s):  
S. Tihile Mangesh ◽  
N. Chaudhari Gajanan
Keyword(s):  
Magnetic Susceptibility ◽  
Schiff Base ◽  
Transition Metal ◽  
Metal Ion ◽  
Spectroscopic Techniques ◽  
The Novel ◽  
Metal Ion Complexes ◽  
Transition Metal Ion ◽  
Ft Ir

The novel transition metal ion complexes were synthesized by refluxing the ethanolic solutions of metal acetates with Schiff base in 1:2 ratios. The structure and characterization of synthesized complexes of Mn (II), Co (II), Ni (II), Cu (II) and Zn (II) with Schiff base (E)-2-((7H-purin-6-ylimino)methyl)phenol were elucidated by using 1H NMR, FT-IR and UV-Visible spectroscopic techniques. The synthesized compounds were also been screened against gram positive and gram-negative bacteria. The novel compounds were further carried out for the study of magnetic susceptibility.

Some metal-ion complexes with ligands formed by reactions of amines with aliphatic carbonyl compounds. VIII. Some copper(II) β-Imino alcohol and β-Imino-olato compounds

1980 ◽  
Vol 33 (6) ◽  
pp. 1219 ◽  
Author(s):  
JWL Martin ◽  
NF Curtis
Keyword(s):  
Carbonyl Compounds ◽  
Metal Ion ◽  
Spin Coupling ◽  
Tetradentate Ligand ◽  
Coupling Constant ◽  
Spin Coupling Constant ◽  
Analogous Structure ◽  
Magnetic Susceptibility Data ◽  
Susceptibility Data ◽  
Isomeric Structure

Compounds of copper(II) with chelated β-imino alcohols are formed by reaction of 4-hydroxy-4-methylpentan-2-one, hmp, with copper(II) compounds of ethane-1,2-diamine, 2-methylpropane-1,2-diamine, meso-1,2- diphenylethane-1,2-diamine, 2-(pyridin-2-yl)ethanamine, 3-azapentane- 1,5-diamine and 4-azaheptane-1,7-diamine. A dinuclear, spin-coupled di- μ-olato bridged derivative of a β-imino alkoxide, formed by reaction of hmp with 2-(pyridin-2-yl)ethanaminecopper(II), has a spin-coupling constant J of -286 cm-1, based on magnetic susceptibility data over the 100-300 K temperature range. A related compound formed by N,N- diethylethane-1,2-diamine, which could have an analogous structure containing water, or an isomeric structure with the β-imino alcohol and with di-μ-hydroxide bridging, has a J value of about -130 cm-1, similarly determined. The preparation of a copper(11) compound with the tetradentate ligand 4,6-trimethyl-1,9-bis(pyridin-2-yl)-3,7-diazanon-3- ene, by reaction of bis[2-(pyridin-2-yl)ethanamine]copper(II) perchlorate with acetone, is reported.

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